to make yourself feel brave enough to do something
鼓起足够的勇气去做某事 (gǔ qǐ zú gòu de yǒng qì qù zuò mǒu shì)
"He finally plucked up the courage to speak in public."
"他终于鼓起勇气在公众面前发言。" (tā zhōng yú gǔ qǐ yǒng qì zài gōng zhòng miàn qián fā yán)
a strong motivation to achieve something
to think carefully about something
a discovery that changes understanding in a field
exactly what is needed or wanted
to suddenly become afraid to do something
a moment of sudden inspiration or realization